/**
 ******************************************************************************
 * @file    stm32f4xx_exti.h
 * @author  MCD Application Team
 * @version V1.8.0
 * @date    04-November-2016
 * @brief   This file contains all the functions prototypes for the EXTI firmware
 *          library.
 ******************************************************************************
 * @attention
 *
 * <h2><center>&copy; COPYRIGHT 2016 STMicroelectronics</center></h2>
 *
 * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
 * You may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *        http://www.st.com/software_license_agreement_liberty_v2
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 ******************************************************************************
 */

/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F4xx_EXTI_H
#define __STM32F4xx_EXTI_H

#ifdef __cplusplus
extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx.h"

/** @addtogroup STM32F4xx_StdPeriph_Driver
 * @{
 */

/** @addtogroup EXTI
 * @{
 */

/* Exported types ------------------------------------------------------------*/

/**
 * @brief  EXTI mode enumeration
 */

typedef enum {
    EXTI_Mode_Interrupt = 0x00,
    EXTI_Mode_Event     = 0x04
} EXTIMode_TypeDef;

#define IS_EXTI_MODE(MODE) (((MODE) == EXTI_Mode_Interrupt) || ((MODE) == EXTI_Mode_Event))

/**
 * @brief  EXTI Trigger enumeration
 */

typedef enum {
    EXTI_Trigger_Rising         = 0x08,
    EXTI_Trigger_Falling        = 0x0C,
    EXTI_Trigger_Rising_Falling = 0x10
} EXTITrigger_TypeDef;

#define IS_EXTI_TRIGGER(TRIGGER) (((TRIGGER) == EXTI_Trigger_Rising) ||  \
                                  ((TRIGGER) == EXTI_Trigger_Falling) || \
                                  ((TRIGGER) == EXTI_Trigger_Rising_Falling))
/**
 * @brief  EXTI Init Structure definition
 */

typedef struct
{
    uint32_t EXTI_Line; /*!< Specifies the EXTI lines to be enabled or disabled.
                             This parameter can be any combination value of @ref EXTI_Lines */

    EXTIMode_TypeDef EXTI_Mode; /*!< Specifies the mode for the EXTI lines.
                                     This parameter can be a value of @ref EXTIMode_TypeDef */

    EXTITrigger_TypeDef EXTI_Trigger; /*!< Specifies the trigger signal active edge for the EXTI lines.
                                           This parameter can be a value of @ref EXTITrigger_TypeDef */

    FunctionalState EXTI_LineCmd; /*!< Specifies the new state of the selected EXTI lines.
                                       This parameter can be set either to ENABLE or DISABLE */
} EXTI_InitTypeDef;

/* Exported constants --------------------------------------------------------*/

/** @defgroup EXTI_Exported_Constants
 * @{
 */

/** @defgroup EXTI_Lines
 * @{
 */

#define EXTI_Line0             ((uint32_t)0x00001)    /*!< External interrupt line 0 */
#define EXTI_Line1             ((uint32_t)0x00002)    /*!< External interrupt line 1 */
#define EXTI_Line2             ((uint32_t)0x00004)    /*!< External interrupt line 2 */
#define EXTI_Line3             ((uint32_t)0x00008)    /*!< External interrupt line 3 */
#define EXTI_Line4             ((uint32_t)0x00010)    /*!< External interrupt line 4 */
#define EXTI_Line5             ((uint32_t)0x00020)    /*!< External interrupt line 5 */
#define EXTI_Line6             ((uint32_t)0x00040)    /*!< External interrupt line 6 */
#define EXTI_Line7             ((uint32_t)0x00080)    /*!< External interrupt line 7 */
#define EXTI_Line8             ((uint32_t)0x00100)    /*!< External interrupt line 8 */
#define EXTI_Line9             ((uint32_t)0x00200)    /*!< External interrupt line 9 */
#define EXTI_Line10            ((uint32_t)0x00400)    /*!< External interrupt line 10 */
#define EXTI_Line11            ((uint32_t)0x00800)    /*!< External interrupt line 11 */
#define EXTI_Line12            ((uint32_t)0x01000)    /*!< External interrupt line 12 */
#define EXTI_Line13            ((uint32_t)0x02000)    /*!< External interrupt line 13 */
#define EXTI_Line14            ((uint32_t)0x04000)    /*!< External interrupt line 14 */
#define EXTI_Line15            ((uint32_t)0x08000)    /*!< External interrupt line 15 */
#define EXTI_Line16            ((uint32_t)0x10000)    /*!< External interrupt line 16 Connected to the PVD Output */
#define EXTI_Line17            ((uint32_t)0x20000)    /*!< External interrupt line 17 Connected to the RTC Alarm event */
#define EXTI_Line18            ((uint32_t)0x40000)    /*!< External interrupt line 18 Connected to the USB OTG FS Wakeup from suspend event */
#define EXTI_Line19            ((uint32_t)0x80000)    /*!< External interrupt line 19 Connected to the Ethernet Wakeup event */
#define EXTI_Line20            ((uint32_t)0x00100000) /*!< External interrupt line 20 Connected to the USB OTG HS (configured in FS) Wakeup event  */
#define EXTI_Line21            ((uint32_t)0x00200000) /*!< External interrupt line 21 Connected to the RTC Tamper and Time Stamp events */
#define EXTI_Line22            ((uint32_t)0x00400000) /*!< External interrupt line 22 Connected to the RTC Wakeup event */
#define EXTI_Line23            ((uint32_t)0x00800000) /*!< External interrupt line 23 Connected to the LPTIM Wakeup event */

#define IS_EXTI_LINE(LINE)     ((((LINE) & (uint32_t)0xFF800000) == 0x00) && ((LINE) != (uint16_t)0x00))

#define IS_GET_EXTI_LINE(LINE) (((LINE) == EXTI_Line0) || ((LINE) == EXTI_Line1) ||   \
                                ((LINE) == EXTI_Line2) || ((LINE) == EXTI_Line3) ||   \
                                ((LINE) == EXTI_Line4) || ((LINE) == EXTI_Line5) ||   \
                                ((LINE) == EXTI_Line6) || ((LINE) == EXTI_Line7) ||   \
                                ((LINE) == EXTI_Line8) || ((LINE) == EXTI_Line9) ||   \
                                ((LINE) == EXTI_Line10) || ((LINE) == EXTI_Line11) || \
                                ((LINE) == EXTI_Line12) || ((LINE) == EXTI_Line13) || \
                                ((LINE) == EXTI_Line14) || ((LINE) == EXTI_Line15) || \
                                ((LINE) == EXTI_Line16) || ((LINE) == EXTI_Line17) || \
                                ((LINE) == EXTI_Line18) || ((LINE) == EXTI_Line19) || \
                                ((LINE) == EXTI_Line20) || ((LINE) == EXTI_Line21) || \
                                ((LINE) == EXTI_Line22) || ((LINE) == EXTI_Line23))

/**
 * @}
 */

/**
 * @}
 */

/* Exported macro ------------------------------------------------------------*/
/* Exported functions --------------------------------------------------------*/

/*  Function used to set the EXTI configuration to the default reset state *****/
void EXTI_DeInit(void);

/* Initialization and Configuration functions *********************************/
void EXTI_Init(EXTI_InitTypeDef *EXTI_InitStruct);
void EXTI_StructInit(EXTI_InitTypeDef *EXTI_InitStruct);
void EXTI_GenerateSWInterrupt(uint32_t EXTI_Line);

/* Interrupts and flags management functions **********************************/
FlagStatus EXTI_GetFlagStatus(uint32_t EXTI_Line);
void EXTI_ClearFlag(uint32_t EXTI_Line);
ITStatus EXTI_GetITStatus(uint32_t EXTI_Line);
void EXTI_ClearITPendingBit(uint32_t EXTI_Line);

#ifdef __cplusplus
}
#endif

#endif /* __STM32F4xx_EXTI_H */

/**
 * @}
 */

/**
 * @}
 */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
